Description
Color: Deep orange-yellow in color due to accumulation of food material in cells and occasionally bright green due to presence of zoochlorellae

Sponge forming robust to flat crusts depending upon the attachment surface, surface hispid; oscula many, forming uniform layer of considerable area, protected by oscular collar formed of dermal membrane. Dermal pores minutely open directly into cylindrical channels of considerably greate diameter; consistency soft but compact.
Skeleton composed of tylostyles, most of their heads in contact with the basal membrane and their shafts projecting upwards, length of largest spicules is 0.33 mm, breadth of the thickest part of the shaft is 0.005 mm and breadth of the head is .006 mm.
Microscleres absent.